Home / 26,818.80-40,215.21-15,729.12

Finding the Fourth Proportional to 26,818.80, 40,215.21 and 15,729.12

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Solution

The fourth proportional to 26,818.80, 40,215.21 and 15,729.12 is: 23,586.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,818.80 : 40,215.21 = 15,729.12 : x
  2. Step 2: Convert to fraction form
    26,818.80/40,215.21 = 15,729.12/x
  3. Step 3: Cross multiply
    26,818.80x = 40,215.21 × 15,729.12
  4. Step 4: Simplify right side
    26,818.80x = 632,549,863.92
  5. Step 5: Solve for x
    x = 632,549,863.92/26,818.80
  6. Step 6: Final answer
    x = 23,586.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.